07-19-2009 06:17 AM - edited 03-06-2019 06:50 AM
hi,
i have problem with Switch 2960 TT . There is Port err-disabled and Link is down.when we do shut no shut just one up and again link is down . and port indicate err-disabled.??/ so what i will do ...>?
07-19-2009 06:38 AM
Reconnect the cable or replace it with a new one.
HTH
Wandering
07-19-2009 07:20 AM
What's connected to the switch port?
07-19-2009 08:50 AM
Hello Jayesh,
first of all you need to understand why the port is placed in error-disable state.
You can use sh log to see last events related to that port or simply
term mon
int type x/y
shut
no shut
you should see the reason.
among possible reasons:
spanning-tree bpduguard
port security
receiving not correct STP information on a trunk port
Hope to help
Giuseppe
07-19-2009 06:33 PM
Giuseppe's right. It is worthwhile to know WHY the port goes into repeatitive error-disable. Use the command sh intertace status err will give you a brief explanation.
Hope this helps.
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